Gateway Error: 00000005 c86044cd

I recently installed Ninjhax 2.0 while experimenting with some CFWs. I then tried to reopen Gateway through Cubic Ninja. I cleared out the save data and scanned the QR code and I get the error in the title. I see that others have encountered this problem, but there doesn't seem to be any consistent way to fix the problem listed in any of the topics I've found on it. Has anyone had any luck with this?

Edit: I'm on a New 3DS